led: remove code guarded by always false conditions

led: remove code guarded by always false conditions

The last CONFIG_MVS in code was removed almost 12 years ago in commit
3b98b57fa796 ("include: delete unused header files").

STATUS_LED_PAR was last seen 8 years ago when removed in commit
5b8e76c35ec3 ("powerpc, 8xx: remove support for 8xx").

If CONFIG_LED_STATUS_BOARD_SPECIFIC is not defined, the build will fail
so we won't even reach this part of the code.

Let's simplify the if block to actually possible configurations.

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Tom Rini <trini@konsulko.com>